I've put the multiplier on my 3.1Ghz 550BE to x19 @ default FSB 200mhz, making it 3.8Ghz. Cpu voltage at stock is 1.35v in bios, and I've increased by one increment of 0.025v, so it's now 1.376v in cpu-z. I've done some quick tests. 1 hour 20 mins orthos small ffts, and 20 minutes of intel burntest, max stress level, 2 threads. No fails. I'm going to run intel burntest overnight but is this a decent indication of stability or is it too early to tell?